70156-2941

Optical Sensors - Photoelectric, Industrial

Optical sensors are used to detect changes in light, such as reflections, shadows, and color variations. Depending on the type of application being used, optical sensors can either use a single or multiple components and components can come in different configurations. Amongst the different types of optical sensors available, photoelectric and industrial sensors are the most common.

70156-2941 – Photoelectric Sensor

The 70156-2941 photoelectric sensor is capable of sensing a range of objects and materials, including paper, plastic, and cardboard. It uses a transmitter and receiver to detect changes in light that are being reflected off of the object. When a change is detected, the sensor will send a signal to the host system to respond accordingly. By using the transmitter and receiver, the 70156-2941 photoelectric sensor is ideal for detecting changes in objects and materials from a distance.

Working Principle of Photoelectric Sensor

The working principle of a photoelectric sensor is based on a light source and a light detector. The light source emits a beam of light that is then received by the light detector if and when the light beam is interrupted. Objects and materials can absorb, reflect, or block the light which will then be detected by the light detector. Depending on the type of photoelectric sensor used, the light source can be an LED, laser, or infrared beam.

70158-3132 – Industrial Sensor

The 70158-3132 industrial sensor is a self-contained, rugged, and cost-effective device that is designed to detect presence, absence, and other related characteristics of objects. It consists of an amplifier, an emitter, a detector, and a controller as its core components. The emitter is typically a laser, LED, or infrared light source and the detector is usually a photodiode or a phototransistor.

Working Principle of Industrial Sensor

The working principle of an industrial sensor is based on reflected light from an object. The emitter will emit a light beam that is then reflected off of an object. The reflected light will be detected by the detector and then sent to the amplifier which amplifies the signal and sends it to the controller. The controller will then determine if the object is present or not, or if the characteristics of the object have changed.

Conclusion

The 70156-2941 photoelectric sensor and the 70158-3132 industrial sensor are two of the most popular optical sensors available. Both sensors use a light source to emit a light beam and a light detector to detect changes in the light. The 70156-2941 is ideal for applications that require sensing from a distance while the 70158-3132 is designed for more robust applications that require detection of objects and other characteristics.